– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Tue 30 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Tue 30 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Tue 30 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummarySome drizzle, heaviest during Tue afternoon. Very mild (max 17°C on Thu afternoon, min 10°C on Tue night). Wind will be generally light. | Days 4–6 Weather SummarySome drizzle, heaviest during Fri afternoon. Warm (max 20°C on Sun afternoon, min 10°C on Sat night). Wind will be generally light. | |||||||||||||||||
Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  | |  | |  | | | | | |  |  | |  | |
light rain | light rain | rain shwrs | light rain | rain shwrs | rain shwrs | cloudy | light rain | cloudy | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | clear | clear | clear | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.1 | 0.3 | 0.3 | 0.2 | 0.4 | 0.1 | — | 0.1 | — | 0.1 | 0.7 | 0.7 | 0.2 | 0.2 | — | — | — | — |
max °C | 12 | 15 | 14 | 11 | 14 | 13 | 15 | 17 | 14 | 16 | 17 | 16 | 13 | 15 | 14 | 16 | 20 | 17 |
min °C | 11 | 14 | 10 | 11 | 12 | 10 | 12 | 17 | 13 | 13 | 17 | 12 | 12 | 15 | 10 | 12 | 19 | 13 |
chill °C | 11 | 14 | 10 | 11 | 12 | 10 | 12 | 17 | 13 | 13 | 17 | 12 | 12 | 15 | 10 | 12 | 19 | 13 |
Freezing level m | 3100 | 2900 | 2600 | 2700 | 2800 | 3000 | 2950 | 2900 | 2850 | 3000 | 3250 | 2850 | 2700 | 2950 | 3300 | 3550 | 3700 | 3900 |
Cloud base (m) | 700 | 950 | 2000 | 750 | 700 | 1700 | 1900 | 1850 | 1600 | 1600 | 1550 | 650 | 850 | 1950 | 1600 | 9200 | 9200 | |
 | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — |
 | — | — | 9:14 | — | — | 9:14 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 | — | — | 9:12 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Some drizzle, heaviest during Tue afternoon. Very mild (max 17°C on Thu afternoon, min 10°C on Tue night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Some drizzle, heaviest during Fri afternoon. Warm (max 20°C on Sun afternoon, min 10°C on Sat night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.